Seat Belt Buckle Does Not Function Properly and/or Seat Belt Warning Lamp Illuminated

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Cause	Correction
Solid or Liquid Contamination A contaminant may have been spilled onto or into the seat belt buckle causing the seat belt buckle to not latch or unlatch properly and potentially illuminating the seat belt warning light. Other foreign debris from food, candy wrappers, paper, or coins may also contribute to this condition.	CAUTION: Do not insert anything other than the seat belt latch plate into the seat belt buckle. Do not attempt to remove debris from the seat belt buckle with a tool. Do not try to wash out a seat belt buckle to remove a contaminant. Damage to the seat belt buckle may occur if any of these options are used. Inspect the seat belt buckle for any contaminants or debris with a light shining on the latch plate insertion area. If any contaminants or debris are observed, try to vacuum out the item (s). After the contaminants or debris is removed, latch and unlatch the seat belt. If the system functions properly, do not replace the seat belt buckle. If the condition has not been corrected, inspect the seat belt buckle for further contaminants. If further contamination is found, replace the seat belt buckle. If further diagnosis is required, continue with the seat belt system inspection. Repairs and Inspections Required After a Collision

Cause

Correction

Solid or Liquid Contamination
A contaminant may have been spilled onto or into the seat belt buckle causing the seat belt buckle to not latch or unlatch properly and potentially illuminating the seat belt warning light. Other foreign debris from food, candy wrappers, paper, or coins may also contribute to this condition.

CAUTION:

Do not insert anything other than the seat belt latch plate into the seat belt buckle. Do not attempt to remove debris from the seat belt buckle with a tool. Do not try to wash out a seat belt buckle to remove a contaminant. Damage to the seat belt buckle may occur if any of these options are used.

Inspect the seat belt buckle for any contaminants or debris with a light shining on the latch plate insertion area.
If any contaminants or debris are observed, try to vacuum out the item (s). After the contaminants or debris is removed, latch and unlatch the seat belt. If the system functions properly, do not replace the seat belt buckle.
If the condition has not been corrected, inspect the seat belt buckle for further contaminants. If further contamination is found, replace the seat belt buckle.
If further diagnosis is required, continue with the seat belt system inspection. Repairs and Inspections Required After a Collision